Cause

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What causes branchiootorenal syndrome?

Mutations in the genes, EYA1, SIX1, and SIX5, are known to cause branchiootorenal syndrome. About 40 percent of people with this condition have a mutation in the EYA1 gene. SIX1 and SIX5 mutations are much less common causes of the disorder.[1] There are likely other genes that have not yet been identified that when mutated can cause this syndrome as well.[2]